摘要
At present, common water heavy metal treatment technologies include physical dilution, adsorption, coagulation and sedimentation, ion reduction, membrane separation, electrochemical remediation, bioremediation, etc. Among them, adsorption method has been widely concerned and applied due to its advantages of simple operation, large adsorption capacity, good selectivity, easy regeneration, etc. The traditional heavy metal adsorbent still has the defects of high preparation cost, low removal efficiency of low-concentration heavy metal ions and the like. With the intensification of environmental problems and the enhancement of human awareness of environmental protection, countries all over the world attach great importance to the development and utilization of renewable resources, such as the high-value utilization of agricultural and forestry wastes and biomass production capacity. Among biomass materials and its derivatives, cellulose has the advantages of large specific surface area, non-toxicity, good biodegradability and biocompatibility, and has very broad prospects for application in different fields. Currently, cellulose materials play an important role in drug delivery, tissue engineering, wastewater treatment, packaging materials, metal ion detection, electronic products/components manufacturing, etc. Based on this, this paper studies the development of cellulose wastewater treatment technology for reference.
